Depends what you think. Meaning if you, yourself think that to be the best player in the league means to be the best player that year, then yeah, just based off this year. But if you think that you have to look at the overall recent career, then vote based off of the last few years. Hopefully this helps!
Should be who's the best player after McDavid and Crosby.
First of all, some people think Crosby is the best in the league and some think Mcdavid is the best in the league, so there's a question already. Also, some people think someone else is the best in the league.